New Delhi: Miffed with the attack on Sonia Gandhi, Congress on Thursday hit back at BJP saying failure to nab the culprits in the VVIP chopper scam in the past two years showed how 'incompetent' the Narendra Modi dispensation is.

Seeking to downplay the names of Congress leaders being allegedly involved in the scam, the party reminded BJP that two decades ago, the Hawala case against BJP veteran L K Advani was quashed in a Supreme Court monitored investigation despite his name appearing in the Jain diaries.